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Journal of Earth Science 2014年第4期25卷 689-700页

作者： Yue Liu qiuming Cheng Qinglin xia Xinqing Wang State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Faculty of Earth Resources China University of Geosciences department of Earth and Space Science and Engineering Department of Geography York UniversityToronto M3J1P3 Canada

The Nanling belt in South China has considerable resources of tungsten polymetallic commodities and is one of the most important metallogenic belts in the world. Data-driven weights-of-evidence （WofE） and fuzzy logic models are used to evaluate the tungsten polymetallic potential of the Nanling belt. Initially, seven ore-controlling factors derived from multi-source geospatial datasets （e.g., geological, geochemical, and geophysical） are used for data integration in the two models. Two mineral potential maps are generated that efficiently predicate the locations of the deposits. The WofE map predicate 81% of the deposits within 13.6% of the study area, whereas the fuzzy logic map predicate 81.5% of the deposits within 13% of the area. The predictive maps are syntheses of spatial association rules, which provide better understanding of those factors that control the distribution of mineralization and trigger eventual exploration work in new areas. Subsequently, in order to evaluate the success rate accuracy, the receiver operating characteristic curves and area under the curves （AUCs） for the two potential maps are constructed. The results show that the AUCs for the WofE and fuzzy logic models are 0.775 7 and 0.840 6, respectively. The higher AUC value for the fuzzy logic model implies that it delineate a greater number of favorable areas compared with the WorE model. Overall, the capabilities of both models for correctly classifying areas with existing mineral deposits are satisfactory.

关键词： weights-of-evidence fuzzy logic data integration mineral potential assessment receiver operating characteristic (ROC) curve.

The use of evidential belief functions for mineral potential mapping in the Nanling belt, South China

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Frontiers of Earth Science 2015年第2期9卷 342-354页

作者： Yue LIU qiuming CHENG Qinglin xia Xinqing WANG State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Wuhan 430074 China Faculty of Earth Resources China University of Geosciences Wuhan 430074 China department of Earth and Space Science and Engineering Department of Geography York University Toronto M3JIP3 Canada

In this study, the evidential belief functions （EBFs） were applied for mapping tungsten polymetallic potential in the Nanling belt, South China. Seven evidential layers （e.g., geological, geochemical, and geophysical） related to tungsten polymetallic deposits were extracted from a multi-source geospatial database. The relationships between evidential layers and the target deposits were quantified using EBFs model. Four EBF maps （belief map, disbelief map, uncertainty map, and plausibility map） are generated by integrating seven evidential layers which provide meaningful interpretations for tungsten polymetallic potential. On the final predictive map, the study area was divided into three target zones of high potential, moderate potential, and low potential areas, among which high potential and moderate potential areas accounted for 17.8% of the total area, containing 81% of the total deposits. To evaluate the success rate accuracy, the receiver operating characteristic （ROC） curves and the area under the curves （AUC） for the belief map were calculated. The area under the curve is 0.81 which indicates that the capability for correctly classifying the areas with existing mineral deposits is satisfactory. The results of this study indicate that the EBFs were effectively used for mapping mineral potential and for managing uncertainties asso- ciated with evidential layers.

关键词： Dempster-Shafer theory of evidence GIS,uncertainty tungsten polymetallic deposit ROC curve

Successful emergency surgical intervention in acute non-STsegment elevation myocardial infarction with rupture:A case report

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World Journal of Clinical Cases 2025年第4期13卷 41-47页

作者： Xing-Po Li Zi-Shan Wang Hong-xia Yu Shan-Shan Wang department of Cardiovascular Medicine Huantai County Hospital of Traditional Chinese MedicineZibo 256400Shandong ProvinceChina department of Cardiovascular Medicine Zibo Hospital of Integrated Traditional Chinese and Western MedicineZibo 255500Shandong ProvinceChina

BACKGROUND The incidence of acute myocardial infarction(AMI)is rising,with cardiac rupture accounting for approximately 2%of deaths in patients with acute ST-segment elevation myocardial infarction(STEMI).Ventricular free wall rupture(FWR)occurs in approximately 2%of AMI patients and is notably rare in patients with *** of cardiac rupture include left ventricular FWR,ventricular septal rupture,and papillary muscle *** FWR usually leads to acute cardiac tamponade or electromechanical dissociation,where standard resuscitation efforts may not be *** septal rupture and papillary muscle rupture often result in refractory heart failure,with mortality rates over 50%,even with surgical or percutaneous repair *** SUMMARY We present a rare case of an acute non-STEMI patient who suffered sudden FWR causing cardiac tamponade and loss of consciousness immediate before undergoing coronary *** resuscitation and emergency open-heart repair along with coronary artery bypass grafting resulted in successful patient *** This case emphasizes the risks of AMI complications,shares a successful treatment scenario,and discusses measures to prevent such complications.

关键词： Acute non-ST segment elevation myocardial infarction cardiac rupture Acute myocardial infarction Free wall rupture Case report

Simulation study and function analysis of the dynamic aortic valve

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Progress in Natural Science:Materials International 2006年第5期16卷 512-517页

作者： xia Dongdong and BAI Jing (department of Biomedical Engineering, Tsinghua University, Beijing 100084, China) [a]department of Biomedical Engineering Tsinghua University Beijing China

The dynamic aortic valve (DAV) is a new left ventricular assist device, a micro-axial blood pump implemented at the position of the aortic valve, pumping blood from the left ventricle into the aortic artery. The present dynamic aortic valve operates at 7 different rotation speeds, ranging from 3000 r/min (speed 1) to 9000 r/min (speed 7). Because in vivo experiments need a lot of live animals and take a long period of time, modeling and simulation have been widely used to simulate and analyze hydra-dynamic property of the DAV and its assisting effects. With the measurements from the mock circulatory loop, a mathematic model of the DAV is established and embedded into the previously developed canine circulatory system. Using this model, the effect of the DAV on the failing heart at each rotation speed level is investigated. The vital cardiac variables are computed and compared with in vivo experimental results, which are in good agreement with an acceptable difference mostly 15%. The establishment of the DAV model and its simulation are useful for further improvement of the DAV device.

关键词： dynamic aortic valve mathematic model computer simulation.

Postoperative Infective Endocarditis and its Prevention in Open-heart surgery with Extracorporeal Circulation

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哈尔滨医科大学学报 1989年第3期 202-203页

作者：姚志发汪少华夏求明赵士杰 department of Cardiothoracic surgery The Second Affiliated Hospital

This article reports seven cases of postoperative infective endocarditis after open-heart surgery with extracorporeal circulation. Its incidence is nearly 1.4%. Etiology study showed that post-operative infective endocarditis was closely related to the operation itself in its early stage and to secondary infections in its late stage. Pharmacotherapy alone samed to be not satisfactory. Clinical diagnostic criteria was suggested. Prophylactic. methods, treatment and other related questions were discussed.

关键词： Infective endocarditis Open-heart surgery Extracorporeal circulation

HEMODYNAMICS FOR ASYMMETRIC INLET AxiaL VELOCITY PROFILE IN CAROTID BIFURCATION MODEL

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Journal of Hydrodynamics 2008年第5期20卷 656-661页

作者： DING Zu-rong LIU Bin YANG Shuo xia Yan department of Engineering Mechanics Shanghai Jiao Tong University Shanghai 200240 China

The asymmetric inlet velocity profile has been observed in phantom model using LDA and in health subjects using Magnet Resonance （MR）. The effects of asymmetric inlet axial velocity profile on the flow field and the Wall Shear Stress （WSS） of carotid bifurcation were numerically studied herein with the TF-AHCB model, The results show that the Wall Shear Stress Gradient （WSSG） in the front part of the sinus for inward-tilting inlet axial velocity profile is nearly 2 times of that for the symmetric one in the beginning of systole, the end of systole, and diastole, respectively. The area of WSS below 5× 10^-3 Pa at the outer wall of the sinus for outward-tilting inlet axial velocity profile is 1.5 times of that for the inward-tilting one during diastole of the cardiac cycle. The asymmetric inlet velocity profiles can reduce the flow velocity near the inner wall of the sinus, which has been normally considered a high velocity region. It is concluded that besides bifurcation geometry and flow waveform, the asymmetry of inlet velocity profile is probably a factor influencing atherosclerosis.

关键词： carotid bifurcation numerical simulation inlet velocity profile Wall Shear Stress(WSS) Wall Shear Stress Gradient(WSSG)

Nonreciprocal coherent coupling of nanomagnets by exchange spin waves

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Nano Research 2021年第7期14卷 2133-2138页

作者： Hanchen Wang Jilei Chen Tao Yu Chuanpu Liu Chenyang Guo Song Liu Ka Shen Hao Jia Tao Liu Jianyu Zhang Marco A.Cabero Z qiuming Song Sa Tu Mingzhong Wu Xiufeng Han Ke xia Dapeng Yu Gerrit E.W.Bauer Haiming Yu Fert Beijing Institute School of Integrated Circuit Science and EngineeringBeijing Advanced Innovation Center for Big Data and Brain ComputingBeihang UniversityBeijing 100191China Max Planck Institute for the Structure and Dynamics of Matter 22761 HamburgGermany Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsUniversity of Chinese Academy of SciencesChinese Academy of SciencesBeijing 100190China Shenzhen Institute for Quantum Science and Engineering(SIQSE) and Department of PhysicsSouthern University of Science and Technology(SUSTech)Shenzhen 518055China department of Physics Beijing Normal UniversityBeijing 100875China department of Physics Colorado State UniversityFort CollinsColorado 80523USA Kavli Institute of Nanoscience Delft University of Technology2628 CJ DelftThe Netherlands Institute for Materials Research WPI-AIMR and CSNRTohoku UniversitySendai 980-8577Japan Zernike Institute for Advanced Materials University of GroningenGroningenNijenborgh 49747 AG GroningenThe Netherlands

Nanomagnets are widely used to store information in non-volatile spintronic *** waves can transfer information with low-power consumption as their propagations are independent of charge ***,to dynamically couple two distant nanomagnets via spin waves remains a major challenge for *** we experimentally demonstrate coherent coupling of two distant Co nanowires by fast propagating spin waves in an yttrium iron garnet thin film with sub-50 nm *** in two nanomagnets are unidirectionally phase-locked with phase shifts controlled by magnon spin torque and spin-wave *** coupled system is finally formulated by an analytical theory in terms of an effective non-Hermitian *** results are attractive for analog neuromorphic computing that requires unidirectional information transmission.

关键词： spintronics nanomagnets spin waves coherent coupling nonreciprocity

白介素4单克隆抗体对心脏移植排斥反应中细胞因子表达的影响

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同济医科大学学报 2001年第4期30卷 344-347页

作者：夏家红黄毅刘成硅张凯伦杨辰垣华中科技大学同济医学院附属协和医院心脏外科武汉430022

为观察白介素 4单克隆抗体 (IL- 4Mab)对同种大鼠心脏移植物存活时间及局部细胞因子网络的影响 ,将实验对象分对照和实验组 ,分别静脉给予生理盐水及抗白介素 4单克隆抗体 (OX81) ,采用改良的移植术式建立移植模型 ,常规监测排斥反应发... 详细信息

为观察白介素 4单克隆抗体 (IL- 4Mab)对同种大鼠心脏移植物存活时间及局部细胞因子网络的影响 ,将实验对象分对照和实验组 ,分别静脉给予生理盐水及抗白介素 4单克隆抗体 (OX81) ,采用改良的移植术式建立移植模型 ,常规监测排斥反应发生情况。应用 RT- PCR的方法检测移植物局部细胞因子如 IL- 1β、IL- 2、CD2 5、IL- 4、IL- 5、IL- 6、IL-10、TNF- α、IFN- γ的表达水平。结果表明 :IL- 4Mab组移植心存活时间没有显著性变化 ,IL- 1β、IL- 2、IL- 5、CD2 5、TNF-α、IFN- γ的表达较强 ,而 IL- 4、IL- 6、IL- 10的表达较弱。提示单纯应用抗 IL- 4单克隆抗体可能调节 TH1/ TH2类 CK的表达 ,但对于移植物的存活时间却少有影响 ,其可能的机制为 :1CK网络中存在其它的独立于 IL- 4的 TH2类 CK;2TH亚群中存在除 TH1及 TH2亚群以外的亚群 THX;3IL-

关键词：白介素4单克隆抗体移植排斥反应心脏移植

Effect of L-carnitine on Cardiomyocyte Apoptosis and cardiac Function in Patients Undergoing Heart Valve Replacement Operation

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Journal of Huazhong University of Science and Technology(Medical Sciences) 2005年第5期25卷 501-504页

作者：向道康孙宗全夏家红董念国杜心灵陈新忠 department of cardiac surgery Union Hospital Tongji Medical College Huazhong University of Science andTechnology Wuhan 430022 China

Summary： The effects of L-carnitine, as an ingredient of cardioplegia solution, on cardiac function and cardiomyocyte apoptosis in patients undergoing heart valve replacement operation were investigated. Twenty-three cases undergoing heart valve replacement with cardiopulmonary bypass （CPB） were randomly allocated into two groups： L-carnitine group （n=12, 12 g/L L-carnitine was put in the ST. Thomas cardioplegia） and control group （n=11, identical to the L-carnitine group except that normal saline was administered instead of L-carnitine）. Serum cardial troponin I （cTnI） levels, the left ventricular ejection fraction （LVEF）, and cardiac index （CI） were measured perioperatively. A bit of myocardial tissue obtained from right atria was taken before CPB and by the end of intracardiac procedure to undergo electron microscopy examination and estimate apoptosis by terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling （TUNEL）. From the end of CPB to 3 days after operation, the serum levels of cTnI in the L-carnitine group was significantly lower than that in the control group （P〈0.05）. Heart color ultrasonogram showed that the CI index and LVEF at 7th day postoperatively in the L-carnitine group were significantly higher than in the control group （P〈0.05）. Compared to the control group, L-carnitine significantly alleviated the morphologic changes of cardiac muscle cells （electron microscopy examination） and decreased the amounts of apoptotic cardiac muscle cells （TUNEL）. Furthermore, the dosage of vasoactive drugs used after operation was significantly less in the L-carnitine group （P〈0.01）. It was concluded that L-carnitine cardioplegia solution could improve cardiac function in patients undergoing heart valve replacement operation and alleviate CPB-mediated apoptosis of cardiac muscle cells.

关键词： heart valve replacement operation cardioplegia solution cardiac function apoptosis L-carnitine